What is the best way to teach writing to children? to teenagers?

I think the best way to teach writing to children is to leave them to create stories, maybe showing a picture and tell them that they have to think in a situation, a story. Another way could be a group of words in a paper and tell them that they have to create a story. I think that they also could work with vocabulary; every word that they don’t know, write it in a book.

In teenagers, I think it could be easier than children because of teacher can suggest any topic, for example “Describing animals” , maybe giving some key words. Also, doing essays and working on blogs.

The best way could be through: letters, blogs and essays.